FreeDink is a port of a windows game called Dink Smallwood to the PSP. It's an isometric RPG originally made in 1997 about a farmer defeating the forces of evil. Read more about FreeDink (27-04-2010) (PSP Game Port)
Stuck Pixel Sniper is another application aiming to help you fixing stuck pixels. Instead of filling the whole screen with flashing RGB colors this just targets the affected pixel (hence the name). Read more about Stuck Pixel Sniper (24-04-2010) (PSP Application)